From: Michael Orlitzky Date: Tue, 6 Jan 2009 23:36:42 +0000 (-0500) Subject: Updated XmlDataParser to use the Python 2.5 ElementTree interface. X-Git-Url: https://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=HEAD;p=dead%2Fpictar.git Updated XmlDataParser to use the Python 2.5 ElementTree interface. Changed some function comments to docstrings. Removed the silly accessors from SupportedType and replaced them with public fields. --- diff --git a/Mime/SupportedType.py b/Mime/SupportedType.py index 9ab2f3e..c0f2267 100644 --- a/Mime/SupportedType.py +++ b/Mime/SupportedType.py @@ -1,12 +1,10 @@ - -""" -Wrapper class for the 'filetype' elements in the config file. Nothing -tricky here, except that the accessor for the template should -intelligently determine which of the two fields (template_file, -template_data) is used as the template source. -""" - class SupportedType: + """ + Wrapper class for the 'filetype' elements in the config + file. Nothing tricky here, except that the accessor for the + template should intelligently determine which of the two fields + (template_file, template_data) is used as the template source. + """ def __init__(self, name = "", @@ -15,62 +13,23 @@ class SupportedType: template_file = "", template_data = ""): - self.__name = name - self.__description = description - self.__extensions = extensions - self.__template_file = template_file - self.__template_data = template_data + self.name = name + self.description = description + self.extensions = extensions + self.template_file = template_file + self.template_data = template_data return - - def GetName(self): - return self.__name - - - def GetDescription(self): - return self.__description - - - def GetExtensions(self): - return self.__extensions - - def GetTemplate(self): - if (self.__template_data == None or self.__template_data == ""): + if (self.template_data == None or self.template_data == ''): # The data is not given explicitly, so rely on the # template file to provide it. - template_file = open(self.__template_file, "r") + template_file = open(self.template_file, 'r') template = template_file.read() template_file.close() return template else: - return self.__template_data - - - - def SetName(self, name): - self.__name = name - return - - - def SetDescription(self, description): - self.__description = description - return - - - def SetExtensions(self, extensions): - self.__extensions = extensions - return - - - def SetTemplateData(self, template_data): - self.__template_data = template_data - return - - - def SetTemplateFile(self, template_file): - self.__template_file = template_file - return + return self.template_data diff --git a/Mime/XmlDataParser.py b/Mime/XmlDataParser.py index 4cd3bec..6d703a6 100644 --- a/Mime/XmlDataParser.py +++ b/Mime/XmlDataParser.py @@ -1,22 +1,27 @@ import os from SupportedType import SupportedType -from xml.dom import Node -from xml.dom.ext.reader.Sax import FromXmlFile - -""" -This class parses all of the information in the config file, and makes -it available through various methods. -""" +from xml.etree.ElementTree import ElementTree class XmlDataParser: + """ + This class parses all of the information in the config file, and + makes it available through various methods. + """ def __init__(self, xml_file_path): + """ + We build a list of supported mimetypes upon instantiation. + """ self.__supported_types = [] - xml_doc = FromXmlFile(xml_file_path) - - supported_type_elements = xml_doc.getElementsByTagName('supported_type') + xml_doc = ElementTree() + xml_doc.parse(xml_file_path) + supported_type_elements = xml_doc.findall('supported_type') + + # For each supported_type element, we build a SupportedType + # object and add it to our __supported_types list. + for current_node in supported_type_elements: name = self.GetChildrenText(current_node, 'name')[0] descriptions = self.GetChildrenText(current_node, 'description') @@ -24,24 +29,19 @@ class XmlDataParser: template_files = self.GetChildrenText(current_node, 'template_file') template_data = self.GetChildrenText(current_node, 'template_data') - current_type = SupportedType() - current_type.SetName(name) - current_type.SetExtensions(extensions) + current_type = SupportedType(name = name, extensions = extensions) if (len(descriptions) > 0): - current_type.SetDescription(descriptions[0]) - + current_type.description = descriptions[0] if (len(template_files) > 0): # Allow for relative paths in the template field root_dir = os.path.dirname(xml_file_path) - template_file_path = os.path.join(root_dir, template_files[0]) - current_type.SetTemplateFile(template_file_path) - + current_type.template_file = os.path.join(root_dir, template_files[0]) if (len(template_data) > 0): - current_type.SetTemplateData(template_data[0]) - + current_type.template_data = template_data[0] + self.__supported_types.append(current_type) return @@ -52,8 +52,7 @@ class XmlDataParser: all_extensions = [] for current_type in self.__supported_types: - current_type_extensions = current_type.GetExtensions() - for extension in current_type_extensions: + for extension in current_type.extensions: all_extensions.append(extension) return all_extensions @@ -61,12 +60,12 @@ class XmlDataParser: def GetTemplateByExtension(self, extension): - # Get the (x)html template which corresponds to a mimetype - # having the supplied extension. + """ + Get the (x)html template which corresponds to a mimetype + having the supplied extension. + """ for current_type in self.__supported_types: - current_type_extensions = current_type.GetExtensions() - - for current_extension in current_type_extensions: + for current_extension in current_type.extensions: if (current_extension.lower() == extension.lower()): return current_type.GetTemplate() @@ -75,45 +74,30 @@ class XmlDataParser: def GetNameByExtension(self, extension): - # Get the name of the mimetype that a particular extension - # belongs to. + """ + Get the name of the mimetype to which a particular extension + belongs. + """ for current_type in self.__supported_types: - current_type_extensions = current_type.GetExtensions() - - for current_extension in current_type_extensions: + for current_extension in current_type.extensions: if (current_extension.lower() == extension.lower()): - return current_type.GetName() + return current_type.name return None - def GetChildNodesByTagName(self, node, tag_name): - found_children = [] - - for child in node.childNodes: - if (child.nodeName == tag_name): - found_children.append(child) - - return found_children - - - - def GetChildrenText(self, node, child_tag_name): - children_text = [] + """ + Find the text of all children of node having child_tag_name. + For example, if we were passed a supported_type for node, we + might want to find the text of all extension elements. + """ - children = self.GetChildNodesByTagName(node, child_tag_name) + children_text = [] + children = node.findall(child_tag_name) for child_node in children: - for sub_child in child_node.childNodes: - if (sub_child.nodeType == Node.TEXT_NODE): - children_text.append(sub_child.nodeValue) - break - + children_text.append(child_node.text) return children_text - - - - diff --git a/Pictar.py b/Pictar.py index 67a056f..d889c1e 100644 --- a/Pictar.py +++ b/Pictar.py @@ -31,9 +31,11 @@ class Pictar: def GetItemPaths(self): - # Create a list of the item paths based on which - # of the files in the target directory match at least - # one of the item regular expressions. + """ + Create a list of the item paths based on which + of the files in the target directory match at least + one of the item regular expressions. + """ target_dir = Configuration.GetAbsTargetDir() item_paths = [] @@ -52,7 +54,7 @@ class Pictar: def GetItemData(self, item_paths): - # Build the pictar markup + """ Build the pictar markup. """ item_data = "" current_item_number = 0 @@ -76,7 +78,7 @@ class Pictar: def GetPageData(self, item_data): - # Fill in the template with our markup + """ Fill in the template with our markup. """ stylesheet_file_name = Configuration.GetStyleSheetPath() page_template = self.template_parser.GetPageTemplate() page_data = page_template.substitute(stylesheet=stylesheet_file_name, diff --git a/TemplateParser.py b/TemplateParser.py index fcf044c..12da1d3 100644 --- a/TemplateParser.py +++ b/TemplateParser.py @@ -5,12 +5,10 @@ from string import Template class TemplateParser: def GetPageTemplate(self): - # Read the page template file into a string + """ Read the page template file into a string. """ page_template_path = Configuration.GetPageTemplatePath() page_template_file = open(page_template_path, "r") page_template = Template(page_template_file.read()) page_template_file.close() return page_template - -